GENERAL DESCRIPTION

The ADP1173 is part of a family of step-up/step-down switching regulators that operates from an input supply voltage of as little as 2 V to 12 V in step-up mode and to 30 V in step-down mode.

FEATURES

Operates From 2.0 V to 30 V Input Voltages

Only 110 mA Supply Current (Typical)

Step-Up or Step-Down Mode Operation

Very Few External Components Required

Low Battery Detector On-Chip

User-Adjustable Current Limit

Internal 1 A Power Switch

Fixed or Adjustable Output Voltage Versions

8-Pin DIP or SO-8 Package

APPLICATIONS

Notebook and Palmtop Computers

Cellular Telephones

Flash Memory Vpp Generators

3 V to 5 V, 5 V to 12 V Converters

9 V to 5 V, 12 V to 5 V Converters

Portable Instruments

LCD Bias Generators